Refrigeration



Oct. '18, 1932. J. H. DENNEDY REFfiIGERA'TION- 5 Sheets-Sheet Filed Oct.25, 1926 Oct. 18, 1932. J. H. DENNEDY 1,883,607

REFRIGERATION Filed Oct. 25. 1926 3 Sheets-Sheet 2 g g m 1/: A TTOR/VE YOct. 18, 1932. DENNEDY 1,883,607

REFRIGERATION Filed Oct. 25, 1926 5 Sheets-Sheet 3 Patented Oct. 18,1932 JAMES H. DENNEDY, or EVANSVILLE, mm

'ro SERVEL, me, on NEW YORK, N. Y.,

ANA, ASSIGNOR, BY MESNE ASSIGNMENTS,

A CORPORATION OF DELAWARE REFRIGERATION Application filed October 25,

My invention relates to refrigerators of the type employing motor,compression means, liquefaction means, and more particu- I larly to therelation of various parts comprising a unit and still more particularlyto the adaptation of air to refrigerant liqueends.

' in the appended claims.

faction.

In one form of my invention, a motor, a compressor and a condenser aremounted upon a common base and a plurality of fans are driven from themotor and so arranged that air is in part forced against the condenserand in part induced away from the condenser.

The invention includes various other phases of arrangement,construction, and operation which will be more fully hereinafterdescribed and more particularly pointed out Referring to theaccompanying drawings: Figure 1 is a front elevation view of acompressor machine unit shown as mounted in the lower part of arefrigerator cabinet, the refrigerator cabinet being shown in section;

Figure 2 is a top plan view of the unit shown in Figure 1; and7Figure3'is an end view of the same.

Referring more particularly to Figure 1, reference character 10designates a base. each of four corners of the base is the support 11.On the forward part of the base are mounted a motor 12 and a compressor13. Motor 12 has a shaft 14 and compressor 13 has a shaft (Fig. 2). Themotor and compressor are arranged so that shafts 14 and 15 extendparallel to each other. These shafts also extend transversally of thelongitudinal dimension or extent of the base. Rearwardly of thecompressor and motor lies a condenser -16 made up of a series ofsuperimposed loops comprising straight sides and semi-circular As can beseen from Figure 1, the condenser extends the full height of the unitand somewhat higher than the compressor. The

loops of the condenser are held in proper place by means of supports 17.The con denser is long relative to its width, looking down upon thesame, and may be said to extend transversally to shafts 14 and 15. Thecondenser extends longitudinally the full t passes over pulleys 1926.Serial No. 144,117.

length of the base and has portions in line with both shaft 14 and shaft15.

Reference character 18 represents a dis- I charge connection for thecompressor which is connected to one end of the condenser tubing asshown at 19 in Figure 3. The other end of the condenser is connectedwith a valve 20 Which is normally open and is connected to a conduit 21adapted to be connected to an evaporator which would preferably besituated in the upper part of the refrigerator cabinet. The return fromthe evaporator is connected to conduit 22 which connects with a member23 comprising a switch control mechanism for cutting the motor into andout of operation. The return fluid from the evaporator after passingthrough member 23 passes into conduit 24 and into the compressor throughconnection 25. The switch control mechanism is disclosed and claimed. inmy Patent No.

1,520,936, granted to me on December 30th,

1924,'and inasmuch as it is not a part ofthe present invention, it isnot herein further described.

Electricity supplied to the motor causes rotation of shaft 14. Thisrotation is transmitted to shaft 15 by means of belt 27 which 28 and 29on shafts 14 and 15 respectively, the pulley 28 being of considerablysmaller diameter than pulley 29. Pulley 29 is the outer ring of a fan 30which includes a series of blades 31. The motor operates to drive thebelt 27 in the direction indicated by arrow 32 in Figure 2. The blades31 are so fashioned and arranged that rotation as thus indicated causesflow of air through the fan in the direction indicated by arrow 33 andon to the compressor. With respect to the condenser, this fan'is aninduced draft fan and draws air across the condenser for the purpose ofliquefying that of blades 31. This fan is mounted rearwardly of belt 27,the diameter of pulley 28 being smaller than the external fan bladediameter. With the rotation above described, air passes through fan 35in the direction indicated by arrow 36. As respects condenser 16 fan 35is a forced draft fan.

Surrounding structure for the unit comprising the parts above describedis provided with suitable openings 38 for admission and exhaustion of amWhile I have described in detail the preferred form of my invention, itis to be understood that this is not by way of limitation.

Having thus described my invention, what ll claim is:

1. In a refrigerating apparatus, the combination of a base, a condenserformed of a flattened elongated coil disposed longitudinally of thebase, a compressor and motor mounted in spaced relation on said basewith parallel shafts disposed transversely of the base and substantiallyat right angles to the condenser, a fan on the motor shaft between themotor and condenser, a fan on the compressor shaft between thecompressor and condenser, said fans being arranged to produce twocurrents of air moving in opposite directions through the condenser, anda single current of air over each the motor and the compressor.

2. In a refrigerating apparatus the combination of a base, an elongatedcondenser disposed longitudinally of the base, a compressor and motormounted in spaced relation on said base with substantially parallelshafts disposed transversely of the base and substantially at rightangles to the condenser, a fan driven from the motor, said fan beinglocated between the motor and condenser, a fan driven by the compressor,said fan being located between the compressor and condenser, said fansbeing arranged to produce two currents of air moving in oppositedirections through the condenser and a single current of air oven eachthe motor and the compressor.

3. In a refrigerating apparatus the combination of a base,.an elongatedcondenser disposed longitudinally of the base, a compressor and motormounted in spaced relation on said base with substantially parallelshafts disposed transversely of the base and substantially at rightangles to the condenser, a fan driven from the motor, said fan beinglocated between the motor and condenser, a fan driven by the compressor,said fan being located between the compressor and condenser, said fansbeing arranged to produce two currents of air moving in oppositedirections for cooling the condenser, the motor and the compressor.

In testimony whereof I afix my signature.

JAMES H. DENNEDY.

